Daphnia parvula: Population traits

at T = 25 °C with background hazards for embryo, juv, adult: 0, 0, 0 1/d

Ln survival probability as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
Ln survivor function of the stable age distribution as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
model std f_minf f_max date: 2024/01/26
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.393996 0.403917 0.701958 0.701958 1 1 scaled functional response
r 1/d 0 0 0.304424 0.166288 0.482781 0.226536 spec pop growth rate
t2 d NaN NaN 2.27691 4.16835 1.43574 3.05976 population doubling time
a_b d 1.23647 1.2326 1.15839 1.15839 1.12238 1.12238 age at birth
t_p d 18.4899 17.2727 5.59184 5.59184 3.79687 3.79687 time since birth at puberty
S_b - 0.999903 0.999904 0.999923 0.999923 0.999931 0.999931 survival probability at birth
S_p - 0.998944 0.862745 0.999381 0.576793 0.99951 0.470694 survival probability at puberty
theta_0b - 0.0667473 0.0855329 0.300632 0.350623 0.419235 0.464452 frac of ind that is embryo
theta_bp - 0.0667583 0.0789378 0.211302 0.217662 0.243852 0.246418 fraction of individuals that is juvenile
theta_pi - 0.866494 0.835529 0.488066 0.431714 0.336914 0.28913 frac of ind that is adult
L_bi cm 0.0115893 0.0118243 0.0160816 0.0161123 0.0176736 0.0177782 mean structural length of post-natals
L2_bi cm^2 0.000134413 0.000139982 0.000267565 0.00027035 0.00033407 0.00034466 mean squared structural length of post-natals
L3_bi cm^3 1.56004e-06 1.65899e-06 4.58809e-06 4.70059e-06 6.7199e-06 7.2363e-06 mean cubed structural length of post-natals
Ww_bi g 4.4655e-06 4.82652e-06 1.98121e-05 2.02979e-05 3.84849e-05 4.14424e-05 mean wet weight of post-natals
L_pi cm 0.0116622 0.011929 0.0176751 0.0180392 0.020859 0.0217824 mean structural length of adults
L2_pi cm^2 0.000136039 0.000142351 0.000316413 0.000330013 0.000446876 0.000490862 mean squared structural length of adults
L3_pi cm^3 1.58726e-06 1.69928e-06 5.73346e-06 6.11666e-06 9.83203e-06 1.14279e-05 mean cubed structural length of adults
Ww_pi g 4.5434e-06 4.94374e-06 2.4758e-05 2.64127e-05 5.63081e-05 6.54474e-05 mean wet weight of adults
R 1/d 0.425222 0.453231 1.29515 1.37086 1.89076 2.15843 mean reproduction rate of adults
J_X g/d 1.1022e-05 1.17676e-05 3.909e-05 3.94969e-05 6.95284e-05 7.17324e-05 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0.035731 0.0197903 0.0466607 0.0228528 yield of living structure on food
Y_VX_d mol/mol 0.00852807 0.0106378 0.00100587 0.0186573 0.000388513 0.0239717 yield of dead structure on food
Y_EX mol/mol 0 0 0.118561 0.0656673 0.220565 0.108025 yield of living reserve on food
Y_EX_d mol/mol 0.0158828 0.0203109 0.00333763 0.0619081 0.0018365 0.113314 yield of dead reserve on food
Y_CX mol/mol 0.866214 0.859676 0.731989 0.724602 0.621174 0.622461 yield of CO2 on food
Y_HX mol/mol 0.624637 0.619922 0.527846 0.522519 0.447935 0.448863 yield of H2O on food
Y_OX mol/mol -0.942008 -0.934898 -0.796038 -0.788005 -0.675527 -0.676926 yield of O2 on food
Y_NX mol/mol 0.129932 0.128951 0.109798 0.10869 0.0931761 0.0933691 yield of N-waste on food
mu_TX J/mol 459500 456010 387087 383110 326654 327351 yield of heat on food

Remarks

  • Reprod-code A applies. Data concerns population of females only.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer